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NFL urges prediction markets to restrict manipulable event trades

Regulation

The NFL urged prediction-market platforms, including Kalshi and Polymarket, to stop offering trades on events that could be manipulated or known in advance, according to an official letter. The league raised concerns about officiating, injuries, draft outcomes, broadcaster mentions and celebrity attendance. Polymarket said it would work with sports leagues on integrity safeguards.

The NFL’s concerns could prompt prediction-market platforms to limit contracts involving manipulable or advance-known events.

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Regulation

House Democrats seek subpoena power to investigate prediction-market trades

Seven House Democrats, led by Representative Chris Pappas, asked House Oversight Committee chair James Comer on Monday for subpoena power to investigate possible insider trading tied to prediction markets and US military operations. Their request follows allegations about trades ahead of military actions and a separate case involving a soldier accused of using confidential information; the lawmakers cited earlier calls for the Commodity Futures Trading Commission to restrict contracts linked to death or armed conflict.

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